Recently he's been leaving clues that guide people to secluded areas where he has hidden installations. This one involves a recording hidden in a locker. Loud enough that a passerby might stop and wonder about it, but quiet enough the viewer needs to press their ear against it to decipher it's meaning. In this case it's a monologue about what I assume was a young Josh's home life. At one point he's asks "Can you hear me? Can anybody hear this? I just need to know you can hear this."